Perhaps you should try some spelling variations:
nang van » dang van, tang van, lang van
cua tre » cua te, cuu tre, cua triet
danh de » hanh de, dan de, dang de
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
va san » va ban
de cua » le cua, te cua, dieu cua
vu san » vu ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu san) or (va san)) ky nang van hoa. hieu va cam ((luc va) or (thuc va)) danh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu san) OR (va san)) ky nang van hoa. hieu va cam ((luc va) OR (thuc va)) danh de cua tre.
• Adding a wildcard symbol may retrieve word variants: ((vu san) or (va san)) ky nang van hoa. hieu va cam ((luc va) or (thuc va)) danh de cua tre*.